Shaping
Divide dough into 8 equal portions. Roll portions into balls. On floured surface using floured rolling pin, roll out 1 ball into 6-inch circle. Cut circle in half. Fold 1 corner of semicircle up and over middle. Fold second corner over to make triangle, and pinch corners of triangle to seal (leave rounded side open). Hold triangle in your hand with open rounded side facing up and let dough fall open to make cone. Fill cone with approximately 2 tablespoons potato mixture, then pinch along rounded side to seal. Repeat with remaining dough and filling.